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• Howto allow "Illegal characters in path" ?

  - by hbruce

  I have a MVC.NET application with one route as follows: routes.MapRoute("member", "member/{id}/{*name}", new { controller = "member", action = "Details", id = "" }, new { id = @"\d+" }); Thus, a link could be something like this: http://domain/member/123/any_kind_of_username This works fine in general but if the path contains illegal characters (e.g. a double qoute: http://domain/member/123/my_"user"_name) I get a "System.ArgumentException: Illegal characters in path." After much googling the best suggestions seems to be to make sure that the url doesn't contain any such characters. Unfortunately, that is out of my control in this case. Is there a way to work around this?

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• Linq to sql Error "Data at the root level is invalid " for nullable xml column

  - by Mukesh

  I have Created a table like CREATE TABLE [dbo].[tab1]( [Id] [int] NOT NULL, [Name] [varchar](100) NOT NULL, [Meta] [xml] NULL, CONSTRAINT [PK_tab1] PRIMARY KEY CLUSTERED ( [Id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] When I am doing linq to sql query to fetch a data it throw an error "data at the root level is invalid linq". In further investigation I come to know that the meta column is null in that case. In real it is nullable Do I have to remove the nullable and set some blank root node as default or there is some another way to get rid of the error. My linq Query which throws error var obj1= (from obj in dbContext.tab1s where obj.id== 123 select obj).FirstOrDefault<Tab1>();

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• C# Throw Exception on use Assert?

  - by guazz

  I have a system where the employeeId must alway exist unless there is some underlying problem. The way I see it, is that I have two choices to check this code: 1: public void GetEmployee(Employee employee) { bool exists = EmployeeRepository.VerifyIdExists(Employee.Id); if (!exists) { throw new Exception("Id does not exist); } } or 2: public void GetEmployee(Employee employee) { EmployeeRepository.AssertIfNotFound(Employee.Id); } Is option #2 acceptable in the C# language? I like it because it's tidy in that i don't like looking at "throw new Exception("bla bla bla") type messages outsite the class scope.

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• Utilizing Windows Handles without a forum.

  - by Scott Chamberlain

  I have a program that needs to sit in the background and when a user connects to a RDP session it will do some stuff then launch a program. when the program is closed it will do some housekeeping and logoff the session. The current way I am doing it is like this I have the terminal server launch this application. I have it set as a windows forms application and my code is this public static void Main() { //Do some setup work Process proc = new Process(); //setup the process proc.Start(); proc.WaitForExit(); //Do some housecleaning NativeMethods.ExitWindowsEx(0, 0); } I really like this because there is no item in the taskbar and there is nothing showing up in alt-tab. However to do this I gave up access to functions like void WndProc(ref Message m) So Now I can't listen to windows messages (Like WTS_REMOTE_DISCONNECT or WTS_SESSION_LOGOFF) and do not have a handle to use for for bool WTSRegisterSessionNotification(IntPtr hWnd, int dwFlags); I would like my code to be more robust so it will do the housecleaning if the user logs off or disconnects from the session before he closes the program. Any reccomendations on how I can have my cake and eat it too?

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• Jquery username check

  - by Sergio

  I'm using this Jquery function for available username check. How can I fire this Jquery function only if the username field is greater of 5 characters? Jquery looks like: $(document).ready(function() { $('#usernameLoading').hide(); $('#username').blur(function(){ $('#usernameLoading').show(); $.post("usercheck.php", { un: $('#username').val() }, function(response){ $('#usernameResult').fadeOut(); setTimeout("finishAjax('usernameResult', '"+escape(response)+"')", 400); }); return false; }); }); function finishAjax(id, response) { $('#usernameLoading').hide(); $('#'+id).html(unescape(response)); $('#'+id).fadeIn(); } //finishAjax Can I use something like this and how: var usr = $("#username").val(); if(usr.length >= 5) { }

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• How to solve timing problems in automated UI tests with C# and Visual Studio?

  - by Lernkurve

  Question What is the standard approach to solve timing problems in automated UI tests? Concrete example I am using Visual Studio 2010 and Team Foundation Server 2010 to create automated UI tests and want to check whether my application has really stopped running: [TestMethod] public void MyTestMethod() { Assert.IsTrue(!IsMyAppRunning(), "App shouldn't be running, but is."); StartMyApp(); Assert.IsTrue(IsMyAppRunning(), "App should have been started and should be running now."); StopMyApp(); //Pause(500); Assert.IsTrue(!IsMyAppRunning(), "App was stopped and shouldn't be running anymore."); } private bool IsMyAppRunning() { foreach (Process runningProcesse in Process.GetProcesses()) { if (runningProcesse.ProcessName.Equals("Myapp")) { return true; } } return false; } private void Pause(int pauseTimeInMilliseconds) { System.Threading.Thread.Sleep(pauseTimeInMilliseconds); } StartMyApp() and StopMyApp() have been recorded with MS Test Manager 2010 and reside in UIMap.uitest. The last assert fails because the assertion is executed while my application is still in the process of shutting down. If I put a delay after StopApp() the test case passes. The above is just an example to explain my problem. What is the standard approach to solve these kinds of timing issues? One idea would be to wait with the assertion until I get some event notification that my app has been stopped.

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• SQL GROUP BY - also SELECT not-constant columns

  - by Michal Kosek

  can someone please help me with this query? I have 2 tables in my database: log_visitors: -------------------- id | host_id log_access: -------------------- visitor | document | timestamp "log_access.visitor" links to "log_visitors.id" Currently, I'm using this query: SELECT log_visitors.host_id , MIM(log_access.timestamp) AS min_timestamp FROM log_access INNER JOIN log_visitors ON (log_access.visitor = log_visitors.id) GROUP BY log_visitors.host_id; to get "MIN(timestamp)" for each "host_id" in the database. HERE'S MY QUESTION: I also need to get "document" for that access with that timestamp... I can't simply add "log_access.document" into SELECT list, since it's not constant and I am not grouping by document... Any ideas?

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• Is there a google talk client for Google Apps for Domains ?

  - by anjanbacchu

  hi there, We use the free google apps for domains. I was wondering if and how to use the GTalk client for google apps for domains ? I can currently use my gmail ID with gtalk but if I want to use my google apps for domains ID on Gtalk, how do I do that ? Is that supported ? thank you, BR, ~A

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• Does GIT have evil twin issues?

  - by Senthil A Kumar

  In ClearCase evil twin occurs when two files are found with the same name in two different versions of the directory, and If the element OIDs are different but the names are the same. In GIT the SHA1 id is always unique and file with same name always have different SHA1 id’s. We don’t have a concept of Evil twins, but there are likely cases where there is chance for 2 or more developers creating a file with different contents with same filename in the same directory. During merge, when both files are completely different, there are chances of the developers to keep his changes alone and leave other changes resulting in code loss. Can anyone let me know if there will be issues in GIT similar to ClearCase or sine each SHA1 id is unique there won't be any Evil twin issues in GIT.

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• ASP.NET MVC does not add ModelError when invoking from unit test

  - by Tomas Lycken

  I have a model item public class EntryInputModel { ... [Required(ErrorMessage = "Description is required.", AllowEmptyStrings = false)] public virtual string Description { get; set; } } and a controller action public ActionResult Add([Bind(Exclude = "Id")] EntryInputModel newEntry) { if (ModelState.IsValid) { var entry = Mapper.Map<EntryInputModel, Entry>(newEntry); repository.Add(entry); unitOfWork.SaveChanges(); return RedirectToAction("Details", new { id = entry.Id }); } return RedirectToAction("Create"); } When I create an EntryInputModel in a unit test, set the Description property to null and pass it to the action method, I still get ModelState.IsValid == true, even though I have debugged and verified that newEntry.Description == null. Why doesn't this work?

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• linq2sql and multiple joins

  - by zerkms

  is it possible to do multiple joins: from g in dataContext.Groups join ug in dataContext.UsersGroups on g.Id equals ug.GroupId join u in dataContext.Users on u. where ug.UserId == user.Id select GroupRepository.ToEntity(g); in the sample above all is fine until i press "." in the end of the 3rd line. there i expect to get intellisense and write u.Id == ug.UserId but it doesn't appear. and of course this code doesn't compile after. what did i wrong?

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• Does a version control database storage engine exist?

  - by Zak

  I was just wondering if a storage engine type existed that allowed you to do version control on row level contents. For instance, if I have a simple table with ID, name, value, and ID is the PK, I could see that row 354 started as (354, "zak", "test")v1 then was updated to be (354, "zak", "this is version 2 of the value")v2 , and could see a change history on the row with something like select history (value) where ID = 354. It's kind of an esoteric thing, but it would beat having to keep writing these separate history tables and functions every time a change is made...

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• Sqlalchemy+elixir: How query with a ManyToMany relationship?

  - by Hugo

  Hi, I'm using sqlalchemy with Elixir and have some troubles trying to make a query.. I have 2 entities, Customer and CustomerList, with a many to many relationship. customer_lists_customers_table = Table('customer_lists_customers', metadata, Column('id', Integer, primary_key=True), Column('customer_list_id', Integer, ForeignKey("customer_lists.id")), Column('customer_id', Integer, ForeignKey("customers.id"))) class Customer(Entity): [...] customer_lists = ManyToMany('CustomerList', table=customer_lists_customers_table) class CustomerList(Entity): [...] customers = ManyToMany('Customer', table=customer_lists_customers_table) I'm tryng to find CustomerList with some customer: customer = [...] CustomerList.query.filter_by(customers.contains(customer)).all() But I get the error: NameError: global name 'customers' is not defined customers seems to be unrelated to the entity fields, there's an special query form to work with relationships (or ManyToMany relationships)? Thanks

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• Any HTTP proxies with explicit, configurable support for request/response buffering and delayed conn

  - by Carlos Carrasco

  When dealing with mobile clients it is very common to have multisecond delays during the transmission of HTTP requests. If you are serving pages or services out of a prefork Apache the child processes will be tied up for seconds serving a single mobile client, even if your app server logic is done in 5ms. I am looking for a HTTP server, balancer or proxy server that supports the following: A request arrives to the proxy. The proxy starts buffering in RAM or in disk the request, including headers and POST/PUT bodies. The proxy DOES NOT open a connection to the backend server. This is probably the most important part. The proxy server stops buffering the request when: A size limit has been reached (say, 4KB), or The request has been received completely, headers and body Only now, with (part of) the request in memory, a connection is opened to the backend and the request is relayed. The backend sends back the response. Again the proxy server starts buffering it immediately (up to a more generous size, say 64KB.) Since the proxy has a big enough buffer the backend response is stored completely in the proxy server in a matter of miliseconds, and the backend process/thread is free to process more requests. The backend connection is immediately closed. The proxy sends back the response to the mobile client, as fast or as slow as it is capable of, without having a connection to the backend tying up resources. I am fairly sure you can do 4-6 with Squid, and nginx appears to support 1-3 (and looks like fairly unique in this respect). My question is: is there any proxy server that empathizes these buffering and not-opening-connections-until-ready capabilities? Maybe there is just a bit of Apache config-fu that makes this buffering behaviour trivial? Any of them that it is not a dinosaur like Squid and that supports a lean single-process, asynchronous, event-based execution model? (Siderant: I would be using nginx but it doesn't support chunked POST bodies, making it useless for serving stuff to mobile clients. Yes cheap 50$ handsets love chunked POSTs... sigh)

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• Problem consuming Exchange Web Service 2010 with jax-ws metro

  - by Johan Karlberg

  I am trying to consume the Exchange 2010 Web Service interface using JAX-WS. I'm using JAX-WS 2.2 RI (Metro 2.0). 2.1 exhibited the same problem. I am running into trouble with Exchange, which returns "HTTP/1.1 415 Cannot process the message because the content type 'text/xml;charset=utf-8' was not the expected type 'text/xml; charset=utf-8'." as a reponse (2.1 quoted the charset value, otherwise same response). Apparently I need to dictate the exact Content-type header for Exchange to be happy. Is there a way for me to do this without forcing me to manually rebuild the dependency? I currently rely on published maven artifacts, and would like to continue doing this if at all possible. The consuming process is a regular J2SE app, with no containers in sight. I have control of the application and can add pretty much anything required to the applications scope, but can not add out-of-process items like proxy servers. The client classes were generated from local WSDL, but the charset specification is derived from constants declared in the jaxws RI implementation, not the generated code. The resulting HTTP transport is thus handled by the standard http/https client from Sun JRE5 or JRE6.

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• 'ALTER table' for all tables in a database

  - by BassKozz

  How can I run the following for every table in a database: ALTER table [table_name] type=innodb; I don't want to have to manually run it for each table, but rather run it for all tables in a database. As an aside: If your curious as to why I am running this: http://bugs.mysql.com/bug.php?id=1341 & http://bugs.mysql.com/bug.php?id=1287

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• Problem installing SQL Server client tools

  - by Shiraz Bhaiji

  We are tring to install SQL Server 2005 Standard on Windows 2008 Standard both 64 bit. Have done this before with no problems. This time we get an error during the installation of client tools: There was an unexpected failure during the setup wizard Link Id 20476, message ID 50000 There are no errors in the event log. Anybody have any ideas what could be wrong?

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• Managing Unique IDs in stateless (web) DB4O applications

  - by Phil.Wheeler

  I'm playing around with building a new web application using DB4O - piles of fun and some really interesting stuff learned. The one thing I'm struggling with is DB4O's current lack of support for stateless applications (i.e. web apps, mostly) and the need for automatically-generated IDs. There are a number of creative and interesting approaches that I've been able to find that hook into DB4O's events, use GUIDs rather than numeric IDs or for whatever reason avoid using any system of ID at all. While each approach has its merits, I'm wondering if the less-elegant approach might equally be the best fit. Consider the following pseudo-code: If ID == 0 or null Set ID = (typeof(myObject)).Count myObject.Save It seems like such a blindingly simple approach, it's usually about here that I start thinking, "I've missed something really obvious". Have I?

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• whats the format for a string of forward slash / in c#

  - by Calibre2010

  Hi, I'm using a htmlhelper where i give table data id's based on day and month values which are retrieved. The problem is the id is not recognized in the format it is. / seems to not be picked up yet when i replace '/' with '-' it works. daysRow.AppendFormat("<td id='{0}/{1}'>{0}</td>", day, d1.Month.ToString()); can anyone tell me how to format this please. '/' forward slash in c#.

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• Hyphenate a random string to an exact format

  - by chrissygormley

  Hello, I am creating a random ID using the below code: from random import * import string # The characters to make up the random password chars = string.ascii_letters + string.digits def random_password(): return "".join(choice(chars) for x in range(32)) This will output something like: 60ff612332b741508bc4432e34ec1d3e I would like the format to be in this format: 60ff6123-32b7-4150-8bc4-432e34ec1d3e I was looking at the .split() method but can't see how to do this with a random id, also the hyphen's must be at these places so splitting them by a certain amount of digits is out. I'm asking is there a way to split these random id's by 8 number's then 4 etc. Thanks

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• ASP.NET MVC: Making routes/URLs IIS6 and IIS7-friendly

  - by Seb Nilsson

  I have an ASP.NET MVC-application which I want deployable on both IIS6 and IIS7 and as we all know, IIS6 needs the ".mvc"-naming in the URL. Will this code work to make sure it works on all IIS-versions? Without having to make special adjustments in code, global.asax or config-files for the different IIS-versions. bool usingIntegratedPipeline = HttpRuntime.UsingIntegratedPipeline; routes.MapRoute( "Default", usingIntegratedPipeline ? "{controller}/{action}/{id}" : "{controller}.mvc/{action}/{id}", new { controller = "Home", action = "Index", id = "" } ); Update: Forgot to mention. No ISAPI. Hosted website, no control over the IIS-server.

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• JQuery $.post not working properly

  - by drupop

  Can't seem to find a fix for this issue I have the following code on the onclick event of an a html tag: AddVacationToCart( { ServiceSupplier:'Kiki', ProductId:'0;11968;0;0;187;1', Name:'Excelsior', NumberOfStars:'*****', TotalPrice:'1620.00', PriceLevelName:'Standard', Currency:'EUR', Status:'', StartDate:'2010-06-17', EndDate:'2010-06-24', NumberOfNights:'7', Rooms:[ { NumberOfAdults:'2', NumberOfChildren:'0', ChildrenAges:[] } ] },'0;11968;0;0;187;1');return false; I also have this code: function AddVacationToCart(vacation, id) { $.post("/ShoppingCart.mvc/AddVacation", vacation, function(data) { var div = $("div[id*=cartv" + id + "]"); var removeFromCartHtml = "Adaugat"; $(div).html(removeFromCartHtml); }, "json"); } This is the code in my ShoppingCartController AddVacation Action: [AcceptVerbs(HttpVerbs.Post)] public ActionResult AddVacation(Vacation test) { ... } The post works as in the (Vacation) test object gets filled with the corresponding properties like ServiceSupplier, ProductId, Name etc. Except the properties of my Rooms field do not get their corresponding values. Any ideeas?

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• How to modify the attributes by putting dynamic node paths

  - by sam

  I have a code that selects all elements and their child nodes DECLARE @x XML DECLARE @node_no int DECLARE @count int DECLARE @max INT, @i INT EXECUTE return_xml '1', NULL, @x output Declare @temp Table ( id int not null identity(1,1), ParentNodeName varchar(max), NodeName varchar(max), NodeText varchar(max) ) INSERT INTO @temp SELECT t.c.value('local-name(..)', 'varchar(max)') AS ParentNodeName, t.c.value('local-name(.)', 'varchar(max)') AS NodeName, t.c.value('text()[1]', 'varchar(max)') AS NodeText FROM @x.nodes('/booking//*') AS t(c) select * from @temp Now I want to modify the attributs by putting dynamic node paths SET @x.modify (' insert attribute MyId {sql:variable("@i")} as first into (ParentNodeName/NodeName::*[position() = sql:variable("@i")])[1] ') where id = id of temp table any Idea how can I modify my whole xml this way as I am having a untyped xml and have to add an attribute in every node

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• Convert data retrieved from MySQL database into JSON object using Python/Django

  - by rohanbk

  I have a MySQL database called People which contains the following schema <id,name,foodchoice1,foodchoice2>. The database contains a list of people and the two choices of food they wish to have at a party (for example). I want to create some kind of Python web-service that will output a JSON object. An example of output should be like: { "guestlist": [ {"id":1,"name":"Bob","choice1":"chicken","choice2":"pasta"},{"id":2,"name":"Alice","choice1":"pasta","choice2":"chicken"} ], "partyname": "My awesome party", "day": "1", "month": "June", "2010": "null" } Basically every guest is stored into a dictionary 'guestlist' along with their choices of food. At the end of the JSON object is just some additional information that only needs to be mentioned once. The question that I have is regarding the method that I need to utilize to grab the data from my database, and create the JSON object. Do I need to use a standard Model/View structure of Django or can I get away with something that is much simpler since what I need to do is really simple?

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• How to sekect latest chnge done in the given Table structure?

  - by OM The Eternity

  I have a Table structure as id, trackid, table_name, operation, oldvalue, newvalue, field, changedonetime Now if I have 3 rows for the same "trackid" same "field", then how can i select the latest out of the three? i.e. for e.g.: id = 100 trackid = 152 table_name = jos_menu operation= UPDATE oldvalue = IPL newvalue = IPLcccc field = name live = 0 changedonetime = 2010-04-30 17:54:39 and id = 101 trackid = 152 table_name = jos_menu operation= UPDATE oldvalue = IPLcccc newvalue = IPL2222 field = name live = 0 changedonetime = 2010-04-30 18:54:39 As u can see above the secind entry is the latest change, Now what query I shoud use to get the only one and Latest row out of many such rows...

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